Centrifugal pump.



G. HAUFF.

GENTRIFUGAL PUMP.

APPLIGATION FILED PEB. a, 190s.

Patentea'Nov. 24, 1908 S SHEETS-SHEET 1 G. HAUFF.

GENTRIFUGAL PUMP.

APPLICATION FILED 1113.8, 190s.

904,533. Patented N0v.24,19o8.

8 SHBBTS-SHEBT Z,

775%/2655551 2/WWW G. HAUFF.

GENTRIPUGAL PUMP.

APPLIoATloN FILED FEB. a, 1908.

904,533. Patented Nov. 24, 1908.

I SEEETS-SEEBT 3. l

FRN

fTransvaal road, Kimberley, Cape GUSTAV HAUFF, OF KIMBERLEY, CAPE` COLONY.

CENTRIFUGAL PUMP.

Application f iled February 8, 1908. Serial No. $14,872.

'To/all whom/t may concern: y f Be it knC-.wn'that I, Gtfsriv Ham-T, a sub.- vject of the King-of Norway, residin at 48 olony, have invented a certain new and useful Improved Centrifugal Pump, of which the following is a specification; 'y'

This invention relates to an improved 'centrifugal pump which, while it issuitable for pumping water and other liquids and semiliquids, iswspecially adapted for pumping tailings, slimes,and such like materials containing Solid matter of different specific gravity.. r y

'Thenew pump differs fromythe Ordinar centrifugal pumpsV in so far as the centri ugal force, created in the pump, is` used for the purpose of imparting a gradually increasing tangential velocity to the material being pumped and not, as in the case of the ordinarycentrifugal pump, for the purpose of ci'eating a static head in the surrounding pump casing.

The pump consists of4 a rotating part which is suitably mounted Ona shaft driven by powerl and is provided with a series of vanes curved towards the'direction-'of rotation and not, as in the case of the iinpellervaries -of an 5 ordinary centrifugal pump, vcurved m the opposite. direction. -jT he rotat- -iiig part is also provided with a circumferential trough or channel opening inwardly towards the axis of rotation. Dipping into this channel or trough is a non-rotating .jet or diverting appliance consistin'gofa scoop, pipe, or nozzle shaped to suit the nature of the material to be pumped and fitted adjustably in such position that the receiving end of same. projects inside the abovementioned channel or trough, While the discharge end points in an oblique direction and clearot' the p iunp. n

` .T he material to be pumped enters near the center of the pump, and isprefeably made toliow by gravity -from an open chute into same,or by the discharge from another independent pump, and the construction of the puinp is such that the material to be pumped tliiws towards the" :circumference thereof, un-

(Llerlthe actionpf the centrifugal force, and in. odoing, gradually acquiresa higher 'Velocity untiyhat the cii'cui'nference, itis discharged tangefiitially into the revolving channel or trough which opens inwardly towards the axis of rotation.` Thelmaterial now flows in the same direction of rotation Specification of Letters Patent.

Patented Nov. 24, 1908.

asthe circular channel containing it and isV vstationary and, as ya consequence, the material discharges itself in the form of a Jet.

which will carry toa distance proportionate to the initial velocity imparted to it by the rotation of the pump. The diverting or jet appliance is so X'ed that it can be adjusted to any position` about the center of the pump andl in this way any desired angle of elevation'of the discharge jet is conveniently obtained. For the adjustment 'of the lateral angle of discharge, the pump may easily be arranged to be turned bodily in any direc-4 tion.

In order that'my said. invention may be properly understood I have hereunto appended explanatory drawings showing, by way of example, forms of construct-ion of the pump.

Figure 1 is an endview of the pump with the rotating. part thereof partly in section. Fig. 2 is a half elevation'and half section of the piling, the section being taken on the line X.. Fig. l. Fig. 3 is an enlarged view of the jet or diverting appliance. Fig.

l, is a similar view of another form-of jetv or diverting appliance. Fig. 5 shows in half section and half elevation the rotating part of pump provided with suction attachment.

of the pump. Fig. 9 isalsection and Fig.

l0 an elevation showing another modey of constructing the rotating part of the pump.

On-the drawings the saine reference letters wherever repeated indicate the same or similar parts.

The pump shown at Figs. l and 2 of a main or rotating part or drum c which is fixed on a shaft .7) running in bearings suitably supported on a bed plate 1'. The shaft b' is coupled at j) to the shaftof an electric motorg which is also carried on the bed plate" r. IThen'iain or rotating part u ispi'ovided with a series of vanes f' which are curved in the direction of rotation .as shown, and these vanesj which exten-d be tween the disk al and the side 'all (/I" of the drum start from the, hub of therotating part. and entend out tothe circumference thereof where they merge into acircumferential channel oi trough g'wl'iichflatter i-s consists comparatively shallow and also open at the one side (see g1 left hand side of Fig. l).

The hub of the rotating drum is extended at e and made so as to constitute an annular and somewhat cup shaped inlet chamber around the shaft b, said inlet leading to the spaces between the several vanes. The mate rial to be pumped'y ows into the inlet cham ber e from a chuted.' The discharge is ef.- fected through a diverting appliance which may consist of a nozzle It, such as shown at Fig. 3, this nozzle at one end dipping into the trough g and at the other end projecting out clear of the rotating drum being securely held in position by an arm z' which is turnably mounted on an extension c1 of the left bearing c (Fig. l). The arm isadjusted in position, as desired, by means of a screwed rod j with hand wheel Z said screwed rod working in a nut pivotally connected to the arm said rod-being free to turn, at its lower end, in a socket s, which. in this construction, is pivotally connected to the bed plate.' The diverting appliance is or may be provided with a depression or guard plate 'u attached thereto.

The arrow m indicates the direction of rotation, the arrow n the intake and the arrow n the jet discharge from the pump. The rotating part is revolved at 'a high 'velocity by means of the motor g and the material being pumped flows in at the center ofthe drum a through the inlet chamber e and is acted on by the vanes f which carry it round and, at'the same time, cause it to flow towards the circumferential -channel g from which it is 4discharged tangentially (see arrow 0) through the nozzle h. The channel or trough g is so.shaped as to prevent the material being pumped overflowing the edge thereof. As shown at Fig. 4- the diverting appliance may take the form of a scoop Ll open at its upper side.

Figs. 5 and 6 show suction arrangements which can be used in connection witlrthe` rotating part if so desired.

yIn Figt 5, a isv the rotating part, f the vanes, and bthe driving shaft. The suction attachment consists of side shields t which are stationary and fixed independently of the revolving part of the pump. The cirgumferential edges of the shields project into the revolving channel g as shown. e1, e1, are inlet branches connected with the shields. Y

In Fig. 6 the rotating part al of the pump is extended and supported by the bearing c forming a hollow shaft or trunnion s1 working in a'stuiiing box at the end of the inlet pipe fu which is suitably connected and supported. l e In the construction shown at Figs. 7 and 8 the rotating part of the pump is cone shaped.

-The material enters .the .small end of the cone e2, while the large end of the cone is formed into the channel g3. The inside surface of the cone a is provided-with webs, ribs or vanes'f-3, which spring from the wheel a3 which takes the place of the disk a1, Figs. l and 2, andextend to the small end of the cone and are curved towards the direction cone is fixed to the driving-shaft b, by meansr of a suitable hub marked 'v1 while the wheel a3 has a hub o2 which is keyed to the shaft b. The diverting appliance dips into the trough g3, as before.

'In the modified construction shown at Figs. 9 and 10 the rotating part .is made like a wheel with radiating spokes f1 made as channels open at "one side and communiyof rotation (indicated by arrow m); The

eating with a channel shaped rim g2 from which the material is discharged as before. The inlet chamber@ 1s ofcomc shape as shown -at Fig. 9. All wearing surfaces of pumpmay be protected by renewable liner plates. The pumpmay be made in any convenient number of parts joined together by suitable means. The pump is v specially adapted for pumping tailings,'slimes and the like. Such materials cannot be econom-` ically pumped by any ofthe usual types of pumps owing to the excessive friction in-'the pipe lines and pumps; the solid matter, when duce a jet when required for any desired p purpose.

Having now fully described by invention what I claim and desire to secure by Letters Patent is zl. In a device of the character described,

a driving shaft, a casingthereon liaying an inlet, a circumferential channel interior of said casing, a disk inclosed by said casing, a plurality of curved blades coperating withsaid ldisk to direct a fluid from said inlet to said channel, an outlet, and tangential dis- .charge means projecting into saidchannels.

Q. A pump having, in combination, a hollow body with a lateral extension at one side thereof, adisk at the interior of the body, a series of curved vanes arranged between the disk and oneside of the body, an inlet in the extension, an internal open channel at the circumference of the body, a nozzle projecting into said channel, 4means for supporting said nozzle and means for adjusting said supporting means.

A pump having. in combination, a holinlet inthe extension, ail internal and openl 'channeLat the circumference ofthe body, a nozzle -Which, atone'endlprojects into thev circumferential channel andv at tlie other end projects .out 4'laterally and tangentially from the rotating' body, a support holding said nozzl'efin position and ascrewed rod for adjusting the' support."

4. A' .pump v-having, -in' combination, a

' shaft, means forrota-tin'gthe shaft, a-body iitted on the shaftso as 'to rotate therewith said-'body having an inlet'atthe oenterand a channel opening inwardly. at the circum- Vfe'renc-, a'series of vanes spring-,gingfroml the central inletand extending tothe circumference of thebody being curved in the diiec'tion'of rotation 'ofthe body, a disk forming the back of the Vanes, an arm mounted on said shaft,1a discharge appliance. fitted 1to said `arm and projecting into the said channel and means for adjusting the position 'of the arm and also holding it in'place.

5. A pump having, in combination, al

shaft, means for .rotating theshaftra fitted on the shaftso as'to rotate therewit 4said body. havingA an inlet at thepenter and 30 -a channel opening vinwardly atthe' cireumference, l'a series o Yanes. springing fromfthe central inletl and -extending'tothe.circumrectionof rotationofthe body, a disk form on said shaft, a scoop shaped 'discharge appliance fitted to said arm and-projecting into the said'cha-nnel and means foradjusting the positionof the arm and also holding 'it 6. In Ia device of the-character deseribed, 'a 'drivingshafn a casing thereon,\hav'1ng an inlet, a Ycircumferential channel interior -of said casing, a' plurality of.' curvedblade's be- 'tween said inlet and said lehannelpand an' outlet nozzle projecting into' said: ircumferential channe l. In testimony whereof Iaix my signature lin presence of two witnesses.

1 ference of the ,bodyfbeing-euryed in the di-4 v *.355 ing theba-ckoifthe' Yanes-can arm mounted f 

